Universal Containers is using Salesforce for Opportunity management and enterprise resource planning (ERP) for order man

[answerhappygod]

Universal Containers is using Salesforce for Opportunity management and enterprise resource planning (ERP) for order management. Sales reps do not have access to the ERP and have no visibility into order status.
What solution should a data architect recommend to give the sales team visibility into order status?

A. Leverage Canvas to bring the order management UI in to the Salesforce tab.
B. Build real-time integration to pull order line items into Salesforce when viewing orders.
C. Build batch jobs to push order line items to Salesforce.
D. Leverage Salesforce Connect to bring the order line item from the legacy system to Salesforce.